Improvement in chain-pump buckets



I. Avana CHAINQUMP BUCKET. Y i .-No. 1g2 '04g l Patented June19,1877

Y N. PEERS. FHOTU-L ITNOGRAPHYER, WASHINGTON. IIJv C.

UNITED STATES Paxrniv'r IRA AVERY, O'F TUNKHANNOCK, PENNSYLVANIA.

IMPRovsMsNT 1N cHAiN-PUMP BucKETs.

Specification forming' part 0f Letters Patent No. 192,013, dated J une 19, 1877; application filed March 15, 187.7. Y

To all whom tt may concern:

Be it known that I, IBA AVERY, of Tunk` hannock, in the county of Wyoming and State of Pennsylvania, have invented new and useful Improvements in Chain-Pumps with elastic rubber valves or buckets, which improve ments are fully set forth in the accompanying drawings. e

The object of my improvements is to re'- duce the amount of friction caused by the contact of the valve or bucket with the inside of the tubing while working; and at the same time to save from escaping or falling hack so large a percentage of the water as is otherwise unavoidable in these pumps, as heretofore known.

These ends are obtained, first, by the use of circular pieces of elastic sheet-rubber, and

laying them, one or more, upon disks or buty tous like to, or the same as, those used in the old-fashioned chainpump. These disks or buttons should be about onefourth inch less in diameter than the diameter of the bore of the tubing to be used at the lower or first joint.

Aor less. The lirst-to be laid upon the disk or button, which may be properly styled the valve-seat-is somewhat less in diameter than it, (the valve-seat.) The second leaf is smaller, and to belaid upon the first.v The third'leaf is about one-fourth inch larger than the diameter of the bore ot' the tubing to be used, and is laid over the rst two and the valve-seat. These circular pieces have two holes punched through them of about the size of the wire composing the links around which the buttons or valve-seats are cast, one hole each side of the center.

By cutting the part between the punchholes, the leaves of sheet-rubber are easily slipped over the link, laid upon the button or valveseat as above stated, when we have the valve or bucket complete, and ready to be attached to the chain. It will now be readily It will be further readily seen that, when the tubing and the valve or bucket become worn, by taking away the under leaves of rubber, the broad one, by being allowed to lie dat upon the button or valve-seat, becomes broader, thus again lling the tubing. One other advantage gained by this form ol' valve or bucket is that in case the crank slips out of thel hand when drawing water, the bucket (upper leaf being flexible) is turned with its edge npward, and receives no harm; and for the same reason the water may, it' desired, whether in cold or hot weather, be allowed to go back into the well.

The other or second part of my invention is to have two sizes of tubing connected together when more than one joint` is needed; the irst or lower joint, being of smaller' bore, forms the pump part, and what is above, being oflarger bore, serves merely as a conductor. lf a pump of one and a hulf inch capacity is wanted I select a smooth, straight-grained joint, which is easily polished inside. The joints needed above, being at least onefourth inch larger bore, .need not be smoothed out, nor is it necessary to use any choice o1' costly lumber. So, il' glass or metal is used t'or the tubing, or a part ot' it, the first or lowerjoint only needs to be smooth. The length of the tirst or lowerjoint being ascertained, the distance between valves or buckets is also determined, as it is necessary that one shall not pass out before the next one enters.

The circular pieces of rubber are cut out of -the sheets by steel bands, having one sharp into the larger ones above, letters AB O D reterring to the same parts as in Fig. l. Fig. 3 shows the form ofthe leaves or layers of rubber, which, in combination with link' and button or valve-seat, form the valve or bucket. Fig. 4 represents a sectional View ot' tubing, chain, and valves or buckets.

I am aware that two patents to F. A. Leav4 ens, n u ln bored e`re`spectively,17 3,479 fand 182,- 454, mention the vcombiningbf -two sizes fo'f tubing, the lower section being small as the bucket, and the upper ones being larger,so as to give room for the accumulation of ice without impeding"th'eibuckets.

desire to secure by Letters Patent, is-

1. A chain'pumpb'ucketeoinposeilfof 'avlink of common pump-chain, with a broad zinc disk 0r valve-seat cast around the middle link and laid upon the zinc disk, or upon other thin rubber disks of smaller diameter,

notwoot `said "disks being ofthe same s'ize, as anibfor the-purposes substantially specified.

2. The combining of tubing of' two sizes of bore, (the difference bein g about one-eighth of an inch in the diameter,) so that there shall 5; .benin-appreciable friction lbetween the bucket What I claim as new and my invention, and

andthe tubing that is above the irstor lower section, and that the additional amount of' `'2,\7\`z{J.-i3er to be-raised byzreason of such slight enlargement shall also be unappreciable in amount, substantially as s et forth.

'IRA AVERY.

Witnesses:

B. W. LEWIS, FELIX ANSART. 

